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<h1 class="topictitle1">Performing Periodic Backup</h1>
<div><p>After resources to be protected are associated with an SLA, the system protects the resources based on the SLA. </p>
<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001839142377_uicontrol31735811411"><b><span id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001839142377_text4171858161413"><strong>Protection</strong></span> &gt; File Systems &gt; <span id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001839142377_text6353164213157"><strong>Object Storage</strong></span></b></span>.</span></li><li><span>Click the <strong>Object Set</strong> tab, select the object set to be protected, and click <span class="uicontrol"><b><span><strong>Protect</strong></span></b></span>.</span><p><p>You can choose multiple object sets for batch protection.</p>
</p></li><li><span>Select an SLA. </span><p><p id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001607841256_p33248794210">You can also click <span class="uicontrol" id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001607841256_uicontrol197631711131711"><b><span id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001607841256_text16757131110174"><strong>Create</strong></span></b></span> to create an SLA.</p>
</p></li><li><span>Configure advanced parameters for object set protection.</span><p><div class="p"><a href="#EN-US_TOPIC_0000001792520334__en-us_topic_0000001792548340_table354613271506">Table 1</a> describes the related parameters.
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001792520334__en-us_topic_0000001792548340_table354613271506"></a><a name="en-us_topic_0000001792548340_table354613271506"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001792548340_table354613271506" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Advanced parameters for object set protection</caption><colgroup><col style="width:22.11%"><col style="width:77.89%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="22.11%" id="mcps1.3.2.2.4.2.1.2.2.3.1.1"><p>Parameter</p>
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<th align="left" class="cellrowborder" valign="top" width="77.89%" id="mcps1.3.2.2.4.2.1.2.2.3.1.2"><p>Description</p>
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<tbody><tr><td class="cellrowborder" valign="top" width="22.11%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.1 "><p>ACL Backup</p>
</td>
<td class="cellrowborder" valign="top" width="77.89%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.2 "><p>This function is disabled by default. After this function is enabled, the ACL attributes of buckets and objects are backed up, but the object scanning speed is reduced.</p>
</td>
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<tr><td class="cellrowborder" valign="top" width="22.11%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.1 "><p>Incremental Scan Based on Bucket Logs</p>
</td>
<td class="cellrowborder" valign="top" width="77.89%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.2 "><p>To enable this function for a bucket to be backed up, ensure that:</p>
<ul><li>The bucket log switch has been enabled and bucket log related configurations have been performed for this bucket.</li><li>The user used for backup has the read permission on the bucket for storing the logs related to this bucket.</li></ul>
<div class="note"><span class="notetitle"> NOTE: </span><div class="notebody"><p>This parameter is displayed only when the object storage type is Huawei Cloud Stack object storage.</p>
</div></div>
</td>
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<tr><td class="cellrowborder" valign="top" width="22.11%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.1 "><p><span><strong>Small File Aggregation</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="77.89%" headers="mcps1.3.2.2.4.2.1.2.2.3.1.2 "><p>After this function is enabled, small files in directories at the same layer are aggregated into large files to improve backup efficiency.</p>
</td>
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</p></li><li><span>Click <span class="uicontrol" id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001607841256_uicontrol196538515235"><b>OK</b></span>. </span><p><p id="EN-US_TOPIC_0000001792520334__en-us_topic_0000001607841256_p25041111535">If the current system time is later than the first backup start time of the SLA, you can select to perform backup immediately after the backup SLA is associated or wait for the next scheduling based on the backup policy set in the SLA.</p>
</p></li></ol>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000001792520366.html">Step 7: Performing Backup</a></div>
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